package com.chinasoft.mall.framework;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.Socket;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import com.chinasoft.mall.model.FormFile;

public class SocketHttpRequester {
	/**
	 * 直接通过HTTP协议提交数据到服务器,实现如下面表单提交功能: <FORM METHOD=POST
	 * ACTION="http://192.168.0.200:8080/ssi/fileload/test.do"
	 * enctype="multipart/form-data"> <INPUT TYPE="text" NAME="name"> <INPUT
	 * TYPE="text" NAME="id"> <input type="file" name="imagefile"/> <input
	 * type="file" name="zip"/> </FORM>
	 * 
	 * @param path
	 * @param params
	 *            请求参数 key为参数名,value为参数值
	 * @param file
	 *            上传文件
	 */
	public static boolean post(String path, Map<String, String> params,
			FormFile[] files) throws Exception {
		final String BOUNDARY = "---------------------------7da2137580612"; // 数据分隔�?
		final String endline = "--" + BOUNDARY + "--\r\n";// 数据结束标志

		int fileDataLength = 0;
		for (FormFile uploadFile : files) {// 得到文件类型数据的�?长度
			StringBuilder fileExplain = new StringBuilder();
			fileExplain.append("--");
			fileExplain.append(BOUNDARY);
			fileExplain.append("\r\n");
			fileExplain.append("Content-Disposition: form-data;name=\""
					+ uploadFile.getParameterName() + "\";filename=\""
					+ uploadFile.getFilname() + "\"\r\n");
			fileExplain.append("Content-Type: " + uploadFile.getContentType()
					+ "\r\n\r\n");
			fileDataLength += fileExplain.length();
			if (uploadFile.getInStream() != null) {
				fileDataLength += uploadFile.getFile().length();
			} else {
				fileDataLength += uploadFile.getData().length;
			}
			fileDataLength += "\r\n".length();
		}
		StringBuilder textEntity = new StringBuilder();
		// 计算传输给服务器的实体数据�?长度
		int dataLength = textEntity.toString().getBytes().length
				+ fileDataLength + endline.getBytes().length;

		URL url = new URL(path);
		int port = url.getPort() == -1 ? 80 : url.getPort();
		Socket socket = new Socket(InetAddress.getByName(url.getHost()), port);
		OutputStream outStream = socket.getOutputStream();
		// 下面完成HTTP请求头的发�?
		String requestmethod = "GET " + path + " HTTP/1.1\r\n";
		outStream.write(requestmethod.getBytes());
		String accept = "Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\r\n";
		outStream.write(accept.getBytes());
		String language = "Accept-Language: zh-CN\r\n";
		outStream.write(language.getBytes());
		String contenttype = "Content-Type: multipart/form-data; boundary="
				+ BOUNDARY + "\r\n";
		outStream.write(contenttype.getBytes());
		String contentlength = "Content-Length: " + dataLength + "\r\n";
		outStream.write(contentlength.getBytes());
		String alive = "Connection: Keep-Alive\r\n";
		outStream.write(alive.getBytes());
		String host = "Host: " + url.getHost() + ":" + port + "\r\n";
		outStream.write(host.getBytes());
		// 写完HTTP请求头后根据HTTP协议再写�?��回车换行
		outStream.write("\r\n".getBytes());
		// 把所有文本类型的实体数据发�?出来
		outStream.write(textEntity.toString().getBytes());
		// 把所有文件类型的实体数据发�?出来
		for (FormFile uploadFile : files) {
			StringBuilder fileEntity = new StringBuilder();
			fileEntity.append("--");
			fileEntity.append(BOUNDARY);
			fileEntity.append("\r\n");
			fileEntity.append("Content-Disposition: form-data;name=\""
					+ uploadFile.getParameterName() + "\";filename=\""
					+ uploadFile.getFilname() + "\"\r\n");
			fileEntity.append("Content-Type: " + uploadFile.getContentType()
					+ "\r\n\r\n");
			outStream.write(fileEntity.toString().getBytes());
			if (uploadFile.getInStream() != null) {
				byte[] buffer = new byte[1024];
				int len = 0;
				while ((len = uploadFile.getInStream().read(buffer, 0, 1024)) != -1) {
					outStream.write(buffer, 0, len);
				}
				uploadFile.getInStream().close();
			} else {
				outStream.write(uploadFile.getData(), 0,
						uploadFile.getData().length);
			}
			outStream.write("\r\n".getBytes());
		}
		// 下面发�?数据结束标志，表示数据已经结�?
		outStream.write(endline.getBytes());

		BufferedReader reader = new BufferedReader(new InputStreamReader(
				socket.getInputStream()));
		if (reader.readLine() != null && reader.readLine().indexOf("200") == -1) {// 读取web服务器返回的数据，判断请求码是否�?00，如果不�?00，代表请求失�?
			return false;
		} else {
			String b=null;
			String jsondata=null;
			while ((b = reader.readLine()) != null) {  
				jsondata=b;
            }
			params.put("jsondata", jsondata);
		}
		outStream.flush();
		outStream.close();
		reader.close();
		socket.close();
		return true;
	}

	/**
	 * 提交数据到服务器
	 * 
	 * @param path
	 *            上传路径
	 * @param params
	 *            请求参数 key为参数名,value为参数值
	 * @param file
	 *            上传文件
	 */
	public static boolean post(String path, Map<String, String> params,
			FormFile file) throws Exception {
		return post(path, params, new FormFile[] { file });
	}

	/**
	 * 提交数据到服务器
	 * 
	 * @param path
	 *            上传路径
	 * @param params
	 *            请求参数 key为参数名,value为参数值
	 * @param encode
	 *            编码
	 */
	public static byte[] postFromHttpClient(String path,
			Map<String, String> params, String encode) throws Exception {
		List<NameValuePair> formparams = new ArrayList<NameValuePair>();// 用于存放请求参数
		for (Map.Entry<String, String> entry : params.entrySet()) {
			formparams.add(new BasicNameValuePair(entry.getKey(), entry
					.getValue()));
		}
		UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams,
				encode);
		HttpPost httppost = new HttpPost(path);
		httppost.setEntity(entity);
		HttpClient httpclient = new DefaultHttpClient();// 看作是浏览器
		HttpResponse response = httpclient.execute(httppost);// 发送post请求
		return readStream(response.getEntity().getContent());
	}

	/**
	 * 发送请求
	 * 
	 * @param path
	 *            请求路径
	 * @param params
	 *            请求参数 key为参数名称 value为参数值
	 * @param encode
	 *            请求参数的编码
	 */
	public static byte[] post(String path, Map<String, String> params,
			String encode) throws Exception {
		// String params = "method=save&name="+ URLEncoder.encode("老毕",
		// "UTF-8")+ "&age=28&";//需要发送的参数
		StringBuilder parambuilder = new StringBuilder("");
		if (params != null && !params.isEmpty()) {
			for (Map.Entry<String, String> entry : params.entrySet()) {
				parambuilder.append(entry.getKey()).append("=")
						.append(URLEncoder.encode(entry.getValue(), encode))
						.append("&");
			}
			parambuilder.deleteCharAt(parambuilder.length() - 1);
		}
		byte[] data = parambuilder.toString().getBytes();
		URL url = new URL(path);
		HttpURLConnection conn = (HttpURLConnection) url.openConnection();
		conn.setDoOutput(true);// 允许对外发送请求参数
		conn.setUseCaches(false);// 不进行缓存
		conn.setConnectTimeout(5 * 1000);
		conn.setRequestMethod("POST");
		// 下面设置http请求头
		conn.setRequestProperty(
				"Accept",
				"image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*");
		conn.setRequestProperty("Accept-Language", "zh-CN");
		conn.setRequestProperty(
				"User-Agent",
				"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");
		conn.setRequestProperty("Content-Type",
				"application/x-www-form-urlencoded");
		conn.setRequestProperty("Content-Length", String.valueOf(data.length));
		conn.setRequestProperty("Connection", "Keep-Alive");

		// 发送参数
		DataOutputStream outStream = new DataOutputStream(
				conn.getOutputStream());
		outStream.write(data);// 把参数发送出去
		outStream.flush();
		outStream.close();
		if (conn.getResponseCode() == 200) {
			return readStream(conn.getInputStream());
		}
		return null;
	}

	/**
	 * 读取流
	 * 
	 * @param inStream
	 * @return 字节数组
	 * @throws Exception
	 */
	public static byte[] readStream(InputStream inStream) throws Exception {
		ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
		byte[] buffer = new byte[1024];
		int len = -1;
		while ((len = inStream.read(buffer)) != -1) {
			outSteam.write(buffer, 0, len);
		}
		outSteam.close();
		inStream.close();
		return outSteam.toByteArray();
	}
}
